– The products have passed ISO9001 and CE certification.
– The valve life is guaranteed for 5 years.
– We provide one-stop sourcing service for you.
– The dozens of series of ball valves, butterfly valves, electric actuators, pneumatic actuators, and accessories.
COVNA company main produce: Manual Fully Lined Butterfly Valves
• The lining butterfly valve body is a split type combination. Easy to assemble and seal adjustment, when the valve is working, only the fluoroplastic seat and the fluoroplastic valve plate are in contact with the medium.
• The inner surface of the valve body channel is smooth, the fluid resistance is small, the CV value is high, the circulation capacity is strong, the torque is moderate, and the zero leakage of the medium is completely achieved. The valve is small in size, light in weight, compact in structure, rapid in switching, beautiful in appearance, and excellent in craftsmanship. Reliable performance, light operation, long service life.
• The valve can withstand any corrosive media other than molten alkali metals and elements. It is a gas, liquid, semi-fluid pipeline and container for chemical, petroleum, pharmaceutical, food, steel smelting, papermaking, hydropower, and environmental protection systems. Do a quick cut-off and adjust the best product for your device.
• Lining materials: PTFE, FEP, PFA, GXPO, etc.
• Connection form: clip type, flange type, lug type connection
• Drive mode: manual, turbine, electric, pneumatic
| Nominal Size | Operated Type | Work Pressure | Work Temperature | Seal Material | Disc Material | Body Material | Medim | Connection Standard |
|---|---|---|---|---|---|---|---|---|
| DN25 ↓ 300 | Pneumatic Actuator, Electric Actuator, Manual Hand Lever, Worm Gear | PN1.0, PN1.6 | -15-150°C | PTFE, FEP, PFA, GXPO | WCB, SS304 | Ductile Iron, WCB, Tianless Steel | Strong Acid, Strong Alkali, Strong Oxidant | PN10/PN16, ANSI150, D1N16, JIS10K/16K |
COVNA company main produce: Manual Fully Lined Butterfly Valves
